public function testCanUse()
{
$instance = new BlobStore('Foo', $this->cache);
$this->assertTrue($instance->canUse());
$instance->setUsageState(false);
$this->assertFalse($instance->canUse());
}
/**
* Remove a cache item that appears during an alteration action (update,
* change, delete) to ensure that we always have the correct set of matches.
*
* @since 2.3
*
* @param DIWikiPage|null $subject
*/
public function resetCacheBy(DIWikiPage $subject = null)
{
if (!$this->blobStore->canUse() || $subject === null) {
return null;
}
// Remove a redirect target subject directly
$redirects = $this->getSemanticData($subject)->getPropertyValues(new DIProperty('_REDI'));
foreach ($redirects as $redirectTarget) {
$this->blobStore->delete($this->getHashFrom($redirectTarget));
}
$sid = $this->getHashFrom($subject);
// Remove all linked objects
$container = $this->blobStore->read($sid);
if ($container->has('list')) {
foreach (array_keys($container->get('list')) as $id) {
$this->blobStore->delete($id);
}
}
$this->blobStore->delete($sid);
}
private function canUse($query)
{
return $this->enabledCache && $this->blobStore->canUse() && ($query->getContextPage() !== null || $query->getContextPage() === null && $this->nonEmbeddedCacheLifetime > 0);
}
